Function: hpath:symlink-expand

hpath:symlink-expand is a byte-compiled function defined in hpath.el.

Signature

(hpath:symlink-expand REFERENT DIRNAME)

Documentation

Return expanded file or directory REFERENT relative to DIRNAME.

Source Code

;; Defined in ~/.emacs.d/elpa/hyperbole-20260414.325/hpath.el
(defun hpath:symlink-expand (referent dirname)
  "Return expanded file or directory REFERENT relative to DIRNAME."
  (let ((var-link)
	(dir dirname))
    (while (string-match "\\$(\\([^\)]*\\))" referent)
      (setq var-link (getenv (substring referent (match-beginning 1)
					(match-end 1)))
	    referent (concat (substring referent 0 (match-beginning 0))
			     var-link
			     (substring referent (match-end 0)))))
    ;; If referent is not an absolute path
    (let ((nd-abbrev (string-match "`node_data" referent)))
      (if (and nd-abbrev (= nd-abbrev 0))
	  (setq referent (concat
			   ;; Prepend node name given in dirname, if any
			   (and (string-match "^//[^/]+" dirname)
				(substring dirname 0 (match-end 0)))
			   "/sys/" (substring referent 1)))))
    (while (string-match "\\(^\\|/\\)\\.\\.\\(/\\|$\\)" referent)
      ;; Match to "//.." or "/.." at the start of link referent
      (while (string-match "^\\(//\\.\\.\\|/\\.\\.\\)\\(/\\|$\\)" referent)
	(setq referent (substring referent (match-end 1))))
      ;; Match to "../" or ".." at the start of link referent
      (while (string-match "^\\.\\.\\(/\\|$\\)" referent)
	(setq dir (file-name-directory (directory-file-name dir))
	      referent (concat dir (substring referent (match-end 0)))))
      ;; Match to rest of "../" in link referent
      (while (string-match "[^/]+/\\.\\./" referent)
	(setq referent (concat (substring referent 0 (match-beginning 0))
			       (substring referent (match-end 0))))))
    (and (not (eq (aref referent 0) ?~))
	 (not (eq (aref referent 0) ?/))
	 (setq referent (expand-file-name referent dirname))))
  referent)